The Konica Hexanon AR 57mm f/1.2is an ultra-fast standard manual focus multi-coated lens for Konica AR SLR 36x24 mm film cameras. The lens also features a fixed focal length of 57 mm and automatic aperture. The lens body is all-metal. The build quality is superb. According to is optical performance, it is considered one of the best Konica AR lenses. Made in Japan.
There are several modifications of this lens.
The description and the photo refer to the later (AE) version. The lens body is all-black (no chromed ring); the focus ring is rubberized. The AE index is green. The aperture ring has half-stop markings (two half-stop clicks between f/1.2 and f/2, then one half-stop click from f/2 to f/16). The lens is perfectly assembled and feels rather weighty. The focus ring travel is smooth and long enough (200 degrees). The lens coating produces tints of yellow. The aperture is fully automatic. The aperture blades are circular.
According to the Internet sources, the earlier version (with metal focus ring, chromed ring, and yellow AE index) has only one half-stop click between f/1.2 and f/2.
Konica AR lenses were manufactured from 1960 to 1987. The precise information on the Konica Hexanon AR 57mm f/1.2 lens' production period has not been found yet.
Due to a relatively short flange focal distance, Konica AR lenses are difficult to use on modern SLR cameras. You should either use a correction lens adapter or redesign a lens mount. On mirrorless digital cameras Konica AR lenses can be used via ordinary adapters.
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Posted by: konsigr Date of publication: 14.10.2012